Meanwhile, Robert posed with castmates Emilie de Ravin and Ruby Jerins before heading into the premiere at the Paris Theatre in NYC.

Over the weekend, Robert sat down with Access Hollywoodto talk about his new film. And while he didn't discuss his much-talked about relationship with his "Twilight" co-star, he did joke about the opposite sex in general – specifically, one part of the female anatomy.

"Don't talk about vaginas, people are very sensitive about them!" Robert laughed, referring to all the controversy over his recent Details magazine spread where he said he was "allergic to vagina."

"Like, I know it's funny," he continued referring to the racy interview and photo spread where he appears with nude women in the magazine. "The whole story was because I thought people would be offended by the photos and when they get offended by the little joking explanation of it…I don't know the world's a weird place."